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trunk/tm/ChangeLog revision 711, Tue Jan 30 13:03:55 2007 UTC pkg/ChangeLog revision 1164, Mon Dec 12 06:42:28 2011 UTC
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1    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
4    
5    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
6    
7            * R/transform.R (removePunctuation): Add option to preserve
8            intra-word dashes.
9    
10    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/matrix.R (termFreq): Allow reordering of control option
13            processing.
14    
15    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
16    
17            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
18            pdfinfo tool.
19    
20            * inst/stopwords/SMART.dat: Add SMART information retrieval system
21            stopwords (which are also used by the MC toolkit).
22    
23            * R/matrix (termFreq): Allow local option \code{bounds$local} to
24            restrict how often a term may appear in each document (generalizes
25            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
26            for word length bounds (generalizes \code{minWordLength}).
27    
28            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
29            \code{bounds$global} for restricting how often a term is allowed
30            to appear in different documents.
31    
32            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
33            local options delegated internally to termFreq() and global
34            options which are processed by the term-document matrix
35            constructor itself.
36    
37    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
38    
39            * man/getTokenizers.Rd: Document getTokenizers().
40    
41            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
42    
43    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
44    
45            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
46    
47            * man/combine.Rd: Document c.term_frequency().
48    
49    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
52            can be accessed via '[' and not '[['.
53    
54    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
55    
56            * R/stopwords.R (stopwords): Raise an error if no stopwords are
57            available for requested language. Suggested by Derek M Jones.
58    
59    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
60    
61            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
62            normalization.
63    
64    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
65    
66            * R/transform.R (stemDocument.PlainTextDocument): Use language
67            argument.
68    
69    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
70    
71            * R/source.R: Store strings and connections instead of unevaluated
72            calls.
73    
74    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
77    
78    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
81            (instead of a list element).
82    
83    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
84    
85            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
86            documents by names (fallback to IDs if names are not set).
87    
88    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
89    
90            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
91            \code{recursive} now determines whether existing corpus meta data
92            is used.
93    
94    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
95    
96            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
97    
98    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
99    
100            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
101            remove terms not occurring in the corpus anymore.
102    
103    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
104    
105            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
106            and Heaps' law.
107    
108    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
109    
110            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
111            provided by a source.
112    
113    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
114    
115            * R/source.R (.Source): Provide document names.
116    
117    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/meta.R (`content_or_meta`): Utility function.
120    
121    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
124            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
125    
126    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
127    
128            * R/weight.R (weightTfIdf): Added normalization option.
129    
130            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
131            analysis.
132    
133    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
134    
135            * R/score.R (tm_tag_score): Compute a score from the number of
136            tags matching in a document.
137    
138    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
139    
140            * R/complete.R (stemCompletion): New completion heuristics.
141    
142    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
145    
146    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
147    
148            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
149            setOldClass(c(..., "list")) works.
150    
151    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
152    
153            * R/transform.R (stemDocument.character): In case input is a
154            simple character just delegate to the default Snowball stemmer.
155    
156    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
157    
158            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
159            data.
160    
161    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/doc.R (`Content<-`): Be careful with names attribute.
164    
165    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
166    
167            * R/source.R (DirSource): Improved implementation especially when
168            handling many (> 1M) files.
169    
170    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/source.R (getElem.URISource): Use encoding argument.
173    
174    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
175    
176            * R/doc.R (setOldClass): Register S3 document classes to be
177            recognized by S4 methods.
178    
179    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
180    
181            * R/matrix.R (termFreq): Add option to remove punctuation
182            characters.
183    
184    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
185    
186            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
187            merging multiple term-document matrices.
188    
189    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
190    
191            * R/corpus.R (setOldClass): Register S3 corpus classes to be
192            recognized by S4 methods.
193    
194            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
195            that CRAN Mac OS X builds do not fail any longer.
196    
197    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
198    
199            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
200            of RWeka:AlphabeticTokenizer() as default.
201    
202    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
203    
204            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
205            caused words at the beginning or the end of a line not to be removed. Do
206            not delete whitespace anymore.
207    
208    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
209    
210            * R/source.R (DirSource): Default to working directory if no path
211            is specified.
212    
213    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
214    
215            * R/source.R (DirSource): Stop on empty directories.
216    
217    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
218    
219            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
220            named documents.
221    
222    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
223    
224            * R/transform.R (removeWords): Improve regular expressions.
225    
226    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/meta.R (DublinCore): Allow lower case tags.
229    
230    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
231    
232            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
233            instead of x$children.
234    
235    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
236    
237            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
238    
239    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
240    
241            * R/: Use S3 instead of S4 class system.
242    
243    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
244    
245            * R/reader.R (readMail): Moved to tm.plugin.mail package.
246    
247    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
248    
249            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
250            postings are basically e-mails with some extra headers.
251    
252    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
253    
254            * R/transform.R: Move convertMboxEml, removeCitation,
255            removeMultipart, and removeSignature to the tm.plugin.mail package
256            since they are mainly utility functions (for handling e-mails) and
257            not very framework specific.
258    
259    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
260    
261            * man/: Fix documentation.
262    
263    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
264    
265            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
266            plain text document instead of an XML document for texts of the
267            Reuters-21578 dataset.
268    
269            * R/sparse.R: Removed since the slam package is now available on
270            CRAN.
271    
272            * DESCRIPTION (Depends): Add slam package.
273    
274    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
275    
276            * R/transform.R (stemDoc): Fix character(0) handling.
277    
278    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
279    
280            * R/doc.R (show): Pretty print.
281    
282    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
283    
284            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
285            gracefully.
286    
287    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
288    
289            * R/corpus.R: Make corpus virtual. Implement corpus with standard
290            and permanent storage semantics.
291    
292            * DESCRIPTION: New major release. A *lot* of improvements.
293    
294    2009-05-04   Ingo Feinerer <feinerer@logic.at>
295    
296            * NAMESPACE: Export some simple_triplet_matrix functions.
297    
298    2009-04-28   Ingo Feinerer <feinerer@logic.at>
299    
300            * R/weight.R: Adapt tf-idf to new matrix format.
301    
302    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
303    
304            * R/matrix.R: Create two distinct classes for term-document and
305            document-term matrices.
306    
307    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
308    
309            * R/termdocmatrix.R: No longer use Matrix package. This reduces
310            package start-up time significantly.
311    
312    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
313    
314            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
315    
316    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
317    
318            * R/transform.R (tmReduce): Combine multiple maps into one
319            transformation.
320    
321    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
322    
323            * R/weight.R: Remove weightLogical since it does not return a
324            dgCMatrix.
325    
326            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
327            or TermDocumentMatrix instead.
328    
329    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
330    
331            * inst/doc/extensions.Rnw: Finished vignette.
332    
333    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
334    
335            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
336            DocumentTermMatrix representations.
337    
338    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
339    
340            * R/reader.R (readXML): New reader for arbitrary XML files.
341    
342    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
343    
344            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
345            (XMLSource): New XMLSource class for arbitrary XML files.
346            (Source): New slot Vectorized.
347    
348    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
349    
350            * R/reader.R (readTabular): Experimental reader for tabular data
351            structures which can be customized via user-defined mappings.
352    
353            * R/reader.R: Always use UTC time zone.
354    
355            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
356    
357    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
358    
359            * R/reader.R (readDOC): Options can be passed over to antiword.
360    
361            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
362            pdftotext.
363    
364    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
365    
366            * R/source.R (DirSource): Add pattern and ignore.case arguments
367            which are internally passed over to list.files().
368    
369    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
370    
371            * inst/doc/tm.Rnw: Suppress pointless loading message.
372    
373    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
374    
375            * DESCRIPTION: Speed up package loading (via moving packages not
376            strictly necessary for normal operation to Suggests instead of
377            Depends).
378    
379    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
380    
381            * R/reader.R (readNewsgroup): The date format is now configurable.
382    
383    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
384    
385            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
386    
387    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
388    
389            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
390    
391    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
392    
393            * R/source.R (DataframeSource): New source class for data frames.
394    
395            * R/source.R: Fixed non-standard call evaluation.
396    
397    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
398    
399            * R/source.R (URISource): New source class for a single document.
400    
401    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
402    
403            * R/source.R: Refactoring.
404    
405    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
406    
407            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
408            Rmpi installations more gracefully.
409    
410    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
411    
412            * R/source.R (Source): Add Length slot.
413    
414    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
415    
416            * R/AAA.R: Unify duplicated .onLoad function.
417    
418    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
419    
420            * DESCRIPTION (Suggests): Added Rmpi.
421    
422    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
423    
424            * R/source.R (getElem): Fix 'no visible binding' warning.
425    
426            * man/WeightFunction.Rd: Fix signature.
427    
428    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
429    
430            * R/weight.R: Introduce name abbreviations for weighting functions.
431    
432    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
433    
434            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
435    
436            * R/cluster.R: Provide convenience functions for using a MPI
437            cluster.
438    
439            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
440            available.
441    
442            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
443            available.
444    
445    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
446    
447            * R/textdoccol.R (lapply): Removed debug print out.
448    
449    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
450    
451            * R/reader.R (readRCV1): Improved meta data extraction from
452            Reuters Corpus Volume 1 documents.
453    
454    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
455    
456            * R/transform.R: Ensure that all mappings preserve multiline
457            structures.
458    
459    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
460    
461            * R/filter.R: Every filter has now an attribute indicating whether
462            it sould be applied to document level (doclevel).
463    
464            * R/textdoccol.R (tmFilter): Set searchFullText as new default
465            filter.
466    
467    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
468    
469            * R/transform.R (replacePatterns): Replaced removeWords by
470            replacePatterns. Suggested by Christian Buchta.
471    
472            * R/textdoccol.R (inspect): Improved formatting.
473    
474    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
475    
476            * inst/CITATION: Updated JSS article information.
477    
478            * R/textdoccol.R (setAs): Added coerce method from list to
479            corpus.
480    
481            * R/meta.R (meta): Improved meta data handling.
482    
483    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
484    
485            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
486            Christian Buchta.
487    
488            * inst/CITATION: Added template to include JSS article reference.
489    
490    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
491    
492            * R/textdoccol.R (tmMap): Introduced lazy mapping.
493    
494            * R/source.R: Added VectorSource.
495    
496    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
497    
498            * man/: Language codes should be in ISO 639-1 format.
499    
500            * R/textdoccol.R (asPlain): Preserve local meta data.
501    
502    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
503    
504            * R/textdoccol.R (writeCorpus): Function for writing a corpus
505            containing plain text documents to disk.
506    
507    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
508    
509            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
510            always set correctly.
511    
512            * R/textdoccol.R: Set load = TRUE as default for load on demand
513            since in most cases this is the wanted behaviour.
514    
515    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
516    
517            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
518    
519            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
520    
521    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
522    
523            * R/meta.R (meta): New function for consistent access to meta data
524            of document collections, repositories, and texts.
525    
526    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
527    
528            * R/: Better support for encodings.
529    
530    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
531    
532            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
533            selection when no reader argument is given.
534    
535    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
536    
537            * R/source.R (CSVSource): Now uses read.csv instead of scan
538            internally.
539    
540    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
541    
542            * R/reader.R (getReaders): Returns available reader functions.
543    
544            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
545            as default.
546    
547    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
548    
549            * R/stopwords.R (stopwords): Shortened code, removed codetools
550            variable warnings.
551    
552            * man/: Documentation for showMeta, added an example for tmMap.
553    
554            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
555            some minor typos fixed.
556    
557    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
558    
559            * R/aobjects.R (showMeta): Added method for pretty printing a
560            text document's meta data.
561    
562    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
563    
564            * R/textdoccol.R (TextDocCol): Better handling of empty
565            arguments.
566    
567            * NAMESPACE: Exported readDOC.
568    
569            * man/completeStems.Rd: Added an example.
570    
571    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
572    
573            * R/stopwords.R (stopwords): Look up .dat files at every
574            call. Allows users to modify stopword .dat files interactively.
575    
576    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
577    
578            * R/termdocmatrix.R (termFreq): Correct processing of empty
579            documents.
580    
581    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
582    
583            * man/: Updated documentation.
584    
585    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
586    
587            * R/complete.R (completeStems): Completes (heuristically) word
588            stems.
589    
590            * R/termdocmatrix.R (TermDocMatrix2): New modular
591            constructor.
592    
593            * NAMESPACE: Exported termFreq.
594    
595    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
596    
597            * R/reader.R (readDOC): Added MS Word reader (using antiword).
598    
599    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
600    
601            * R/weight.R: Weighting functions for TermDocMatrix.
602    
603    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
604    
605            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
606            functions for accessing dimension, column, and row names.
607    
608            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
609    
610    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
611    
612            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
613    
614    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
615    
616            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
617    
618    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
619    
620            * R/reader.R (readPDF): Removed manual checks for pdftotext and
621            pdfinfo. The system call gives a warning anyway.
622    
623    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
624    
625            * R/textdoccol.R (asPlain): Conversion from
626            StructuredTextDocuments to PlainTextDocuments.
627    
628    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
629    
630            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
631            for accessing term-document matrices.
632    
633            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
634            are installed.
635    
636    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
637    
638            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
639            Christian Buchta.
640    
641    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
642    
643            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
644    
645    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
646    
647            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
648    
649            * R/reader.R (readPDF): Added PDF reader.
650    
651    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
652    
653            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
654    
655            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
656    
657            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
658    
659            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
660    
661    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
662    
663            * R/distmeasure.R (dissimilarity): Replaced dists call from
664            package cba by new dist call from package proxy.
665    
666    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
667    
668            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
669    
670    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
671    
672            * R/termdocmatrix.R: require() uses the quietly option to suppress
673            loading messages.
674    
675    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
676    
677            * R/dictionary.R: Added dictionary support.
678    
679    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
680    
681            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
682            documents. This simplifies some functions, e.g., asPlain.
683    
684    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
685    
686            * inst/doc/tm.Rnw: Fixed some typos in vignette.
687    
688    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
689    
690            * R/textdoccol.R (replaceWords): Added method to replace a set of
691            words by a single word. Useful for synonyms.
692    
693    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
694    
695            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
696    
697    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
698    
699            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
700            vectors. Thanks to Ariel Maguyon for his error report.
701            (removeSparseTerms): New function to remove columns from a
702            term-document matrix exceeding a sparse factor.
703    
704    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
705    
706            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
707    
708    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
709    
710            * man/sFilter.Rd: Corrected documentation on statement format (use
711            '==' instead of '=').
712    
713    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
714    
715            * R/aobjects.R (StructuredTextDocument): Inherits from
716            TextDocument.
717    
718    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
719    
720            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
721            on sparse matrices as proposed by Martin Maechler.
722    
723    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
724    
725            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
726            \pkg{filehash} version makes them deprecated.
727    
728    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
729    
730            * R/termdocmatrix.R (textvector): Stemming is now performed before
731            erasing stopwords.
732            (weightMatrix): Adapted to handle sparse matrices.
733            (TermDocMatrix): Sparse matrix is now efficiently built by
734            direct stepwise insertion of row values into it.
735    
736    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
737    
738            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
739            due to ongoing problems. For our purposes the latter is as useful
740            as the replaced package.
741    
742    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
743    
744            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
745    
746            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
747    
748    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
749    
750            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
751            languages with available stopwords.
752    
753    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
754    
755            * inst/doc/tm.Rnw: Minor corrections in the vignette.
756    
757    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
758    
759            * DESCRIPTION: Update to version 0.2, since a lot of new features
760            have been integrated.
761    
762            * inst/stopwords: Updated existing stopwords and added stopwords
763            for various other languages.
764    
765    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
766    
767            * man/: Updated documentation.
768    
769            * Work/testDb.R: Script to test database stuff.
770    
771            * R/: Fixed various database related bugs. Seems to be rather
772            useable now, i.e., consider as alpha status for now.
773    
774    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
775    
776            * R/: Fixed some bugs related to database support.
777    
778    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
779    
780            * man/: Added a lot of examples to the manuals.
781    
782    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
783    
784            * man/: Updated parts of the documentation.
785    
786            * R/textdoccol.R (asPlain): Added conversion from newsgroup
787            documents to plain text documents.
788    
789    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
790    
791            * R/textdoccol.R: Finished experimental database support. Not yet
792            intensively tested.
793    
794            * R/source.R: Now each source has a default reader.
795    
796            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
797            class anymore.
798    
799            * R/plaintextdoc.R: Custom show method for plain text documents.
800    
801            * R/aobjects.R: Added a class for structured text documents.
802    
803            * R/reader.R: Replaced remaining \code{parser} occurrences with
804            \code{reader}.
805    
806            * R/textdoccol.R (summary): Indent tags.
807    
808            * R/textdoccol.R (removePunctuation): Transform method to remove
809            punctuation marks.
810    
811    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
812    
813            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
814            using prescindMeta().
815    
816    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
817    
818            * R/textdoccol.R: Improved database support.
819    
820    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
821    
822            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
823    
824            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
825            language code.
826    
827            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
828            into parserControl argument.
829    
830            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
831    
832    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
833    
834            * Work/tmDataSetup.R: The datasets acq and crude can now be
835            created on the fly.
836    
837            * R/stopwords.R: Introduced a function returning the stopwords for
838            a given language (English, German and French at the moment)
839    
840            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
841            otherwise falls back to Snowball package.
842    
843  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
844    
845          * man/dissimilarity-methods.Rd: Make clear that any method offered          * man/dissimilarity-methods.Rd: Make clear that any method offered

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